books.google.co.uk - From the primeval age of Ayànàgalú (the Yorùbá pioneer-drummer-turned-deity-of-drumming) to the modern era, Yorùbá musical traditions have been shaped by individual performers: drummers, dancers, singers, and chanters, who express self-mediated visions of their social and cultural environment....https://books.google.co.uk/books/about/Yor%C3%B9b%C3%A1_Music_in_the_Twentieth_Century.html?id=MbdufnmnhooC&utm_source=gb-gplus-shareYorùbá Music in the Twentieth Century